Bulgaria said that it would make a final choice on its candidate for U.N. secretary-general after September 26, scotching speculation that it would nominate European Commission Vice President Kristalina Georgieva on Tuesday.

Prime Minister Boyko Borisov told journalists in Sofia that UNESCO Director General Irina Bokova would remain the official candidate for the next two weeks to determine how she performs in the next straw poll of Security Council members.

“Our support will continue until September 26 when she will have to be among the first two candidates,” Borisov was quoted as saying by Sega.

There had been numerous reports in recent days that the Bulgarian government was considering replacing Bokova with Georgieva.

The four straw polls to date have revealed tepid support for Bokova, who placed fifth among the 10 candidates in the most recent poll last Friday, well behind the frontrunner, former Portuguese Prime Minister António Guterres.